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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P1805: Brake Switch >> Component Inspection >> Stop Lamp Switch
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Stop Lamp Switch

  1. Disconnect stop lamp switch harness connector.
    Fig 1: Locating ASCD Brake Switch, Stop Lamp Switch & Brake Pedal
    G02691852Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Check continuity between stop lamp switch terminals 1 and 2 under the following conditions.
    CHECKING CONTINUITY CONDITION

    Conditions Continuity
    Brake pedal fully released Should not exist.
    Brake pedal depressed Should exist.
  3. If NG, adjust stop lamp switch installation, refer to BRAKE PEDAL and perform step 2 again.
    Fig 2: Check Continuity Between Stop Lamp Switch Terminals 1 & 2
    G02691853Courtesy of NISSAN MOTOR CO., U.S.A.
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